Exercise 71 Page 56

To convert feet to yards, we need to create a conversion factor. We know that there are 3 feet in 1 yard, which means we have the following conversion factor. 1 yd/3 ft Multiplying 27 feet by this conversion factor will convert it to yards.

27 ft* 1 yd/3 ft

MoveLeftFacToNum

a*b/c= a* b/c

27 ft* 1 yd/3 ft

CrossCommonFac

Cross out common factors

27 yd* 1 yd/3 ft

MultByOne

a * 1=a

27 yd/3

CalcQuot

Calculate quotient

9yd

27ft is equal to 9yd.